Silvana is the Italian feminine of Silvanus — from the Latin silva (forest), meaning "of the forest." The Roman god Silvanus was the guardian of woods.
Silvana Mangano (1930-1989) was the iconic Italian actress (Bitter Rice); Silvana Suárez (1957-2023) was Miss World 1978.
Silvana does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Silvana reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.